Vitoc is the antidote to a deadly toxin, not the poison itself? For more information see Vitoc.
Added. I can't quite remember if mine was xeishi or xeishi@gmail.com, but whichever one works is my Steam ID. Would love to play a few rounds of L4D2 with anyone who was in the mood, it's been far too long already.
If you have Steam, add me: IHeartRacing